8.(TI) When you drink a cup of coffee or a glass of cola, or when you eat a chocolate bar, the percent, P, of caffeine remaining in your bloodstream is related to the elapsed time, t, in hours by the following equation; t = 5( logP log 0.5 a. How long will it take for the amount of caffeine to drop to 20% of the amount consumed? b. Supposed you drink a cup of coffee at 9:00 am, what percent of the caffeine will remain in your body at noon?